Advertisements
Advertisements
Question
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Advertisements
Solution
A gas with a pungent, choking odour which is lighter than air is Ammonia
RELATED QUESTIONS
Define mixture.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Give two examples of the following.
Metals which are soft
Tick (√) the correct alternative from the choice given for the following statement.
The most abundant elements in the universe are
Give the name of the radical - SO4
Complete the statement given below by filling in the blanks with the correct words.
Atom contains ________ , with positively charged _____.
Write the names of elements from the following symbol:
Fe
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
Name the element which is used for making computer chips.
